19 chairs.
650-176 is 474 and 474 divided by 25 is 18.96 so round up and 19 or 18 per row
Substitute x with the members of the domain.
f(x) = 5x² + 4
Substitute with the domain of -4
f(x) = 5x² + 4
f(-4) = 5(-4)² + 4
f(-4) = 5(16) + 4
f(-4) = 80 + 4
f(-4) = 84
Substitute with the domain of -2
f(x) = 5x² + 4
f(-2) = 5(-2)² + 4
f(-2) = 5(4) + 4
f(-2) = 20 + 4
f(-2) = 24
Substitute with the domain of 0
f(x) = 5x² + 4
f(0) = 5(0)² + 4
f(0) = 5(0) + 4
f(0) = 0 + 4
f(0) = 4
Substitute with the domain of 1.5
f(x) = 5x² + 4
f(1.5) = 5(1.5)² + 4
f(1.5) = 5(2.25) + 4
f(1.5) = 11.25 + 4
f(1.5) = 15.25
Substitute with the domain of 4
f(x) = 5x² + 4
f(4) = 5(4)² + 4
f(4) = 5(16) + 4
f(4) = 80 + 4
f(4) = 84
The range of the function for those domain is {4, 24, 15.25, 84}
Correct option is C. The Amazon River carries more water than any other river in the world.
The Amazon River carries more water than any other river in the world. In fact, the Amazon River is responsible for about one-fifth (twenty percent) of the fresh water that flows into the world's oceans. The Amazon River is the second longest river in the world and is about 4,000 miles (6400 km) long.
The Amazon is considered the world's largest river by volume, but scientists have believed it is slightly shorter than Africa's Nile. The Brazilian scientists' 14-day expedition extended the Amazon's length by about 176 miles (284 kilometers), making it 65 miles (105 kilometers) longer than the Nile.
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The traveling speed of each ship is :
- Ship A = 24 mph
- Ship A = 24 mphShip B = 26 mph
Distance apart at 12:00 noon = 176 miles
Recall :
Distance = speed × time
Ship A :
Departure time = 9AM
Speed = s
Travel time = 12 - 9 = 3 hrs
Distance covered = 3 × s = 3s
Ship B :
Departure time = 8AM
Speed = 2+s
Travel time = 12 - 8 = 4 hours
Distance = 2+s(4) = 8 + 4s
Distance apart = 3s + (8 + 4s)
176 = 3s + 8 + 4s
176 = 7s + 8
176 - 8 = 7s
168 = 7s
s = 168 / 7
s = 24
Ship A speed = s = 24mph
Ship B speed = s + 2 = 26 mph
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Answer:
2
Step-by-step explanation:
